Chapter 85 covers electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles. This chapter has an extremely broad scope, ranging from household appliances to industrial electrical equipment, but excludes certain specific electrical products (such as mechanical apparatus of Chapter 84). The core characteristic is that the goods' main function depends on electrical energy to operate or they are electrical connection or protection devices. Heading 8536 covers electrical apparatus for switching or protecting electrical circuits, or for making connections to or in electrical circuits, for a voltage not exceeding 1000 V, such as switches, relays, fuses, circuit breakers, lamp holders, plugs and sockets, etc. These devices are used to control, distribute, or protect circuits and are key components of electrical infrastructure. However, similar devices for a voltage exceeding 1000 V are classified under 8535. First 2 digits 85: Chapter 85, electrical equipment and parts thereof. Digits 3-4: 36: Heading 8536, electrical apparatus for switching or protecting electrical circuits, or for making connections to electrical circuits, for a voltage not exceeding 1000 V. Digits 5-6: 20: Subheading 853620, specifically referring to automatic circuit breakers. An automatic circuit breaker is a protective electrical device that can automatically cut off fault currents (such as overload or short circuit), different from manual switches and fuses. This subheading is not further subdivided by current rating or type, but attention must be paid to the voltage limit. The goods are automatic circuit breakers used for circuit overload or short circuit protection, with voltage not exceeding 1000 V, meeting the heading description of 8536. They are not classified under 8535 (high-voltage switching apparatus) due to the voltage limit; not under 853610 (fuses) due to different operating principles; not under 853641 (relays) because the function is protection rather than signal control.

Product Name: The specific name of the declared goods, such as "automatic circuit breaker" or "miniature circuit breaker", which must be consistent with the actual product. Brand Type: Fill in the brand name or "no brand", such as "Schneider", "ABB", etc. Model: The model code assigned by the manufacturer to uniquely identify product specifications. Voltage: Rated voltage value, in volts (V), must be ≤1000V. Current: Rated current value, in amperes (A), such as "16A", "32A". Use: Specify the application scenario, such as "for overload protection of distribution lines". Working Principle: Briefly describe the operating principle of the automatic circuit breaker, such as "thermal-magnetic", "electronic". Product Name: Automatic Circuit Breaker; Brand Type: Schneider; Model: iC65N-C16; Voltage: 230/400V; Current: 16A; Use: For overload and short circuit protection of residential distribution box lines; Working Principle: Thermal-magnetic trip. Declaring voltage exceeding 1000V, leading to incorrect classification under 8535. Confusing automatic circuit breakers with residual current devices, the latter may be classified under other subheadings of 8536. Not declaring rated current, affecting customs judgment of product characteristics.

The core basis for classification is: 1) whether the goods' function is to automatically cut off circuits; 2) whether the voltage is ≤1000V; 3) whether it is a switching, protection, or connection device. Automatic circuit breakers detect overload and short circuit through thermal-magnetic or electronic means and automatically disconnect, meeting the "protection device" description of 8536. If the voltage exceeds 1000V, it is classified under 8535; if it is a manual switch, it is classified under other subheadings of 8536 (such as 853650). 8535 High-voltage switches, protection devices: Voltage exceeding 1000V, used for high-voltage power grids, whereas 853620 is limited to ≤1000V. 853610 Fuses: Fuses cut off circuits by melting the fuse element and are single-use; automatic circuit breakers are reusable. 853641 Relays: Relays are used to control circuit on/off, usually with small currents; automatic circuit breakers are used for protection with large currents. 853650 Other switches: Manual switches have no automatic protection function, whereas automatic circuit breakers have automatic overload tripping. Is the voltage clearly ≤1000V? Does it have an automatic cut-off function? Is it used for circuit protection rather than control? Is it reusable? Is it distinguished from fuses and relays?

How to distinguish automatic circuit breakers from residual current devices (RCD) in HS codes? Residual current devices mainly detect leakage current and are usually classified under other subheadings of 8536 (such as 853630 or 853690), while automatic circuit breakers (853620) focus on overload and short circuit protection. If both leakage protection and overcurrent protection functions are present, classification should be based on the primary function. Is an automatic circuit breaker with a voltage of exactly 1000V classified under 853620 or 8535? Heading 8536 explicitly states "for a voltage not exceeding 1000V", therefore 1000V and below are classified under 8536, and exceeding 1000V under 8535. Note that the voltage value must be the rated voltage. Can DC automatic circuit breakers be classified under 853620? Yes, 853620 does not limit the type of current. DC automatic circuit breakers with voltage ≤1000V are also classified under this subheading. However, DC must be indicated in the declaration elements. How are parts of automatic circuit breakers classified? Dedicated parts, if declared separately, are generally classified under 8538 (parts of 8536), but it is necessary to confirm whether they are specifically named under 8538. General-purpose parts are classified according to material. How to check the import tariff rate for 853620? The tariff rate must be checked according to the latest customs tariff. The applicable rate can be determined by entering the HS code and country of origin through the website of the General Administration of Customs of China or professional databases. Must brand and model be provided during declaration? Yes, brand and model are important declaration elements that help customs confirm commodity classification and value. If there is no brand, declare "no brand"; the model should be complete and accurate. How to declare an automatic circuit breaker set (multiple units packaged together)? If it is a retail set, it is still classified as automatic circuit breakers, but the composition and quantity of the set must be declared. If combined with other electrical appliances, it may be classified as a complete set. What is the difference between 853620 and 853630? 853630 covers other circuit protection devices, such as surge protectors, residual current devices, etc., while 853620 specifically refers to automatic circuit breakers. The difference lies in the protection principle and function.